Messages in this thread | | | Date | Wed, 10 Aug 2022 08:24:37 -0500 | Subject | Re: [PATCH v2] crypto: ccp: Add a quirk to firmware update | From | Tom Lendacky <> |
| |
On 8/9/22 17:49, Jarkko Sakkinen wrote: > From: Jarkko Sakkinen <jarkko@profian.com> > > A quirk for fixing the committed TCB version, when upgrading from a > firmware version earlier than 1.50. This is a known issue, and the > documented workaround is to load the firmware twice. > > Currently, this issue requires the following workaround: > > sudo modprobe -r kvm_amd > sudo modprobe -r ccp > sudo modprobe ccp > sudo modprobe kvm_amd > > Implement this workaround inside kernel by checking whether the API > version is less than 1.50, and if so, download the firmware twice. > This addresses the TCB version issue. > > Link: https://lore.kernel.org/all/de02389f-249d-f565-1136-4af3655fab2a@profian.com/ > Reported-by: Harald Hoyer <harald@profian.com> > Signed-off-by: Jarkko Sakkinen <jarkko@profian.com>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
| |